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70135105 = 514027021
BaseRepresentation
bin1000010111000…
…10110101000001
311212222020021111
410023202311001
5120423310410
610543123321
71511065345
oct413426501
9155866244
1070135105
11366535a7
121b5a3541
13116b8181
149459625
156255b8a
hex42e2d41

70135105 has 4 divisors (see below), whose sum is σ = 84162132. Its totient is φ = 56108080.

The previous prime is 70135103. The next prime is 70135111. The reversal of 70135105 is 50153107.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42667024 + 27468081 = 6532^2 + 5241^2 .

It is not a de Polignac number, because 70135105 - 21 = 70135103 is a prime.

It is a super-2 number, since 2×701351052 = 9837865906722050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70135103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7013506 + ... + 7013515.

It is an arithmetic number, because the mean of its divisors is an integer number (21040533).

Almost surely, 270135105 is an apocalyptic number.

It is an amenable number.

70135105 is a deficient number, since it is larger than the sum of its proper divisors (14027027).

70135105 is a wasteful number, since it uses less digits than its factorization.

70135105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14027026.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 70135105 is about 8374.6704412771. The cubic root of 70135105 is about 412.3935054136.

The spelling of 70135105 in words is "seventy million, one hundred thirty-five thousand, one hundred five".

Divisors: 1 5 14027021 70135105